A7♯5
A7♯5 is the a dominant 7th sharp 5 chord, spelled A – C♯ – E♯ – G. the augmented dominant — the raised fifth leans hard into the resolution a fifth below.
The keys
A – C♯ – E♯ – G
Practise this chord
Plug in your MIDI keyboard and let Coach Tshepho drill you on A7♯5 — it plays the chord, names any wrong notes as you play, and moves you on when you nail it.
Create your free account →What's inside A7♯5
| Note | Interval from root | Degree |
|---|---|---|
| A | Root | 1 |
| C♯ | Major 3rd | 3 |
| E♯ | Augmented 5th | #5 |
| G | Minor 7th | b7 |
Inversions
| Position | Keys (low → high) |
|---|---|
| Root position | A4 – D♭5 – F5 – G5 |
| 1st inversion | D♭5 – F5 – G5 – A5 |
| 2nd inversion | F5 – G5 – A5 – D♭6 |
| 3rd inversion | G5 – A5 – D♭6 – F6 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | A2 – G3 |
| Right (colour) | D♭5 – F5 |
Where A7♯5 lives
Hard resolution
A7♯5 → Dm9
Altered dominants resolve with maximum drama — especially into minor.
Chromatic approach
Em7 → A7♯5 → D
The alteration sharpens the pull of the standard two-five.
Put A7♯5 under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
Open the Chord & Voicing Lab →More A chords
A
Am
Adim
Aaug
Asus2
Asus4
A6
Am6
A7
Amaj7
Am7
Am7♭5
Adim7
Am(maj7)
A9
Amaj9
Am9
Aadd9
A6/9
Am11
A13
A7♭9
A7♯9Play it over a groove
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